1018098049 has 2 divisors, whose sum is σ = 1018098050. Its totient is φ = 1018098048.

The previous prime is 1018098017. The next prime is 1018098061. The reversal of 1018098049 is 9408908101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 892097424 + 126000625 = 29868^2 + 11225^2 .

It is a cyclic number.

It is not a de Polignac number, because 1018098049 - 2⁵ = 1018098017 is a prime.

It is not a weakly prime, because it can be changed into another prime (1018098149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509049024 + 509049025.

It is an arithmetic number, because the mean of its divisors is an integer number (509049025).

Almost surely, 2^1018098049 is an apocalyptic number.

It is an amenable number.

1018098049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1018098049 is an equidigital number, since it uses as much as digits as its factorization.

1018098049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 1018098049 is about 31907.6487538646. The cubic root of 1018098049 is about 1005.9966512937.

The spelling of 1018098049 in words is "one billion, eighteen million, ninety-eight thousand, forty-nine".